An option to control the order in which rows are returned
from a read.
ORDER_BY_UNSPECIFIED is equivalent to ORDER_BY_PRIMARY_KEY.
ORDER_BY_PRIMARY_KEY (1):
Read rows are returned in primary key order.
In the event that this option is used in conjunction with
the `partition_token` field, the API will return an
`INVALID_ARGUMENT` error.
ORDER_BY_NO_ORDER (2):
Read rows are returned in any order.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-04 UTC."],[],[],null,["# Class OrderBy (3.57.0)\n\nVersion latestkeyboard_arrow_down\n\n- [3.57.0 (latest)](/python/docs/reference/spanner/latest/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.56.0](/python/docs/reference/spanner/3.56.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.55.0](/python/docs/reference/spanner/3.55.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.54.0](/python/docs/reference/spanner/3.54.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.53.0](/python/docs/reference/spanner/3.53.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.52.0](/python/docs/reference/spanner/3.52.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.51.0](/python/docs/reference/spanner/3.51.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.50.1](/python/docs/reference/spanner/3.50.1/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.46.0](/python/docs/reference/spanner/3.46.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.45.0](/python/docs/reference/spanner/3.45.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.44.0](/python/docs/reference/spanner/3.44.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.43.0](/python/docs/reference/spanner/3.43.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.42.0](/python/docs/reference/spanner/3.42.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.41.0](/python/docs/reference/spanner/3.41.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.40.1](/python/docs/reference/spanner/3.40.1/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.39.0](/python/docs/reference/spanner/3.39.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.38.0](/python/docs/reference/spanner/3.38.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.37.0](/python/docs/reference/spanner/3.37.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.36.0](/python/docs/reference/spanner/3.36.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.35.1](/python/docs/reference/spanner/3.35.1/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.34.0](/python/docs/reference/spanner/3.34.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.33.0](/python/docs/reference/spanner/3.33.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.32.0](/python/docs/reference/spanner/3.32.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.31.0](/python/docs/reference/spanner/3.31.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.30.0](/python/docs/reference/spanner/3.30.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.29.0](/python/docs/reference/spanner/3.29.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.28.0](/python/docs/reference/spanner/3.28.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.27.1](/python/docs/reference/spanner/3.27.1/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.26.0](/python/docs/reference/spanner/3.26.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.25.0](/python/docs/reference/spanner/3.25.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.24.0](/python/docs/reference/spanner/3.24.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.23.0](/python/docs/reference/spanner/3.23.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.22.2](/python/docs/reference/spanner/3.22.2/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.21.0](/python/docs/reference/spanner/3.21.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.20.0](/python/docs/reference/spanner/3.20.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.19.0](/python/docs/reference/spanner/3.19.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.18.0](/python/docs/reference/spanner/3.18.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.17.0](/python/docs/reference/spanner/3.17.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.16.0](/python/docs/reference/spanner/3.16.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.15.1](/python/docs/reference/spanner/3.15.1/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.14.1](/python/docs/reference/spanner/3.14.1/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.13.0](/python/docs/reference/spanner/3.13.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.12.1](/python/docs/reference/spanner/3.12.1/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.11.1](/python/docs/reference/spanner/3.11.1/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.10.0](/python/docs/reference/spanner/3.10.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.9.0](/python/docs/reference/spanner/3.9.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.8.0](/python/docs/reference/spanner/3.8.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.7.0](/python/docs/reference/spanner/3.7.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.6.0](/python/docs/reference/spanner/3.6.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.5.0](/python/docs/reference/spanner/3.5.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.4.0](/python/docs/reference/spanner/3.4.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.3.0](/python/docs/reference/spanner/3.3.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.2.0](/python/docs/reference/spanner/3.2.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.1.0](/python/docs/reference/spanner/3.1.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [3.0.0](/python/docs/reference/spanner/3.0.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [2.1.1](/python/docs/reference/spanner/2.1.1/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [2.0.0](/python/docs/reference/spanner/2.0.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [1.19.3](/python/docs/reference/spanner/1.19.3/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [1.18.0](/python/docs/reference/spanner/1.18.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [1.17.1](/python/docs/reference/spanner/1.17.1/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [1.16.0](/python/docs/reference/spanner/1.16.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [1.15.1](/python/docs/reference/spanner/1.15.1/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [1.14.0](/python/docs/reference/spanner/1.14.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [1.13.0](/python/docs/reference/spanner/1.13.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [1.12.0](/python/docs/reference/spanner/1.12.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [1.11.0](/python/docs/reference/spanner/1.11.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy)\n- [1.10.0](/python/docs/reference/spanner/1.10.0/google.cloud.spanner_v1.types.ReadRequest.OrderBy) \n\n OrderBy(value)\n\nAn option to control the order in which rows are returned\nfrom a read. \n\n ORDER_BY_UNSPECIFIED is equivalent to ORDER_BY_PRIMARY_KEY.\n ORDER_BY_PRIMARY_KEY (1):\n Read rows are returned in primary key order.\n\n In the event that this option is used in conjunction with\n the `partition_token` field, the API will return an\n `INVALID_ARGUMENT` error.\n ORDER_BY_NO_ORDER (2):\n Read rows are returned in any order."]]